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Finding the Fourth Proportional to 28,996.97, 40,014.95 and 17,060.99

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Solution

The fourth proportional to 28,996.97, 40,014.95 and 17,060.99 is: 23,543.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,996.97 : 40,014.95 = 17,060.99 : x
  2. Step 2: Convert to fraction form
    28,996.97/40,014.95 = 17,060.99/x
  3. Step 3: Cross multiply
    28,996.97x = 40,014.95 × 17,060.99
  4. Step 4: Simplify right side
    28,996.97x = 682,694,376.42
  5. Step 5: Solve for x
    x = 682,694,376.42/28,996.97
  6. Step 6: Final answer
    x = 23,543.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.